[Plugin: W3 Total Cache] Weird behaviour after posting….

So, still working out the bugs on W3. I had the site really cranking fast today. Then I decided to publish a new post. Suddently both the logged in and non logged in users started seeing a dirt slow site. This persisted for a good 10 minutes then finally sped up again to a decent speed.

What could cause this kind of delay? Is this normal?

Second, and very bizarre, in the non-logged-in user, it took quite a while for the new post to turn up on the front page, then it went away, then it came back… shift-reload worked once, then navigating back the post was gone. Now it’s finally stabilized, but took a good 10 minutes.